ASTROSAT CZTI

Data Quality Report

Orbit 22553

Creation date: 2024-06-27T18:42:42.926527
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A07_148T05_9000003346_22553cztM0_level2.evt modeM0/AS1A07_148T05_9000003346_22553cztM0_level2_quad_clean.evt
Size (bytes)465,540,48086,328,000
Size444.0 MB 82.3 MB
Events in quadrant A3,268,732544,504
Events in quadrant B3,652,940556,525
Events in quadrant C3,457,967538,404
Events in quadrant D3,286,692530,498

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0190
B0200
C0200
D0200

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136812
B0149222
C0143302
D0139562

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6366691.083883%
B63651752.749411%
C63651652.592302%
D6365630.989788%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7531 6367 0 0 0.00% 0.00%
B 7530 6366 17 17 0.23% 0.27%
C 7530 6366 3 3 0.04% 0.05%
D 7530 6366 6 6 0.08% 0.09%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 13 254 10342 56.52 847 831 168.3
A 0 226 7337 38.67 847 831 168.3
A 3 137 7107 37.3 847 831 168.3
B 15 33 356535 2248.8 840 822 158.2
B 12 111 18584 112.29 840 822 158.2
B 11 111 16447 98.78 840 822 158.2
C 14 238 131475 681.49 823 832 191.7
C 0 207 83610 431.81 823 832 191.7
C 0 10 36151 184.24 823 832 191.7
D 13 249 57764 278.76 834 810 204.3
D 13 172 29888 142.32 834 810 204.3
D 2 234 26426 125.38 834 810 204.3

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter